MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains a link farm pointing to multiple compromised WordPress sites, likely serving as a phishing lure. The presence of external URIs and link farms suggests an attempt to redirect users to malicious or phishing websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://synerhu.ru/uplcv?utm_term=data+warehouse+lifecycle+toolkit+pdf+free+download PDF link annotation
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/960820d162dab7406a86ab6f266b42da/vifesexareminakimifiwupub.pdfIn PDF document text
- https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/228e1d8aaccdf6ece9b20cfcd84feab0/rasuraz.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607db9df92002---15578116846.pdfIn PDF document text
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160726504f1f2c---71796047329.pdfIn PDF document text
- http://deborahkay.com/ckfinder/userfiles/files/wejewagememozesot.pdfIn PDF document text
- https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/768c23bc4a529927cde77a5489196c16/36008653289.pdfIn PDF document text
- http://ttccid.com/userfiles/files/xomejuvidumuzopenuvej.pdfIn PDF document text
- https://benqmusicworkshop.com/fupload/file/mikikopuwatogomisodavo.pdfIn PDF document text
- http://www.klccpa.com/userfiles/file/In PDF document text
- https://tedvandergulik.nl/userimages/file/welekurodabinevexoguz.pdfIn PDF document text
- https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/790cb956b40555035b5a0992d68cd397/gazito.pdfIn PDF document text
- https://adtw1.com/ckfinder/userfiles/files/gilizumovovivo.pdfIn PDF document text
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/be41473b4fb5589062d3c451f20f69ac/83260263650.pdfIn PDF document text
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8a8f38e0e0---votatal.pdfIn PDF document text
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160baad5e66f53---28619917869.pdfIn PDF document text
- http://hoangle.vn/uploads/userfiles/file/mugufiraniboriretemo.pdfIn PDF document text
- https://beysukonaklari.com/ckfinder/userfiles/files/71091823651.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e03a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE03A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f851.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF851 | 11108 bytes |
SHA-256: 5666322ad6feab5ac8c71838a42805a8b64d15e1445ecfd363bfb3165a7670f3 |
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font_02_sfnt_off00011247.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11247 | 16560 bytes |
SHA-256: 353a1607b41b8b422578d6fd7402b6a4945f84293e8fbd84fe6f40d2ab60c2d5 |
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